Stent graft

• US 5,916,264 A
• Filed: 03/26/1998
• Issued: 06/29/1999
• Est. Priority Date: 05/14/1997
• Status: Expired due to Term

• Current Assignee: Abbott Laboratories Limited (Abbott Laboratories Incorporated)
• Original Assignee: Jomed Implantate GmbH
• Inventors: Reifart, Nikolaus, Von Oepen, Randolf
• Primary Examiner(s): Milano, Michael J.
• Application Number:
  US09/048,358
• Time in Patent Office: 460 Days
• Field of Search: 623/1, 623/11, 623/12
• US Class Current: 623/1.15
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/852 Two or more distinct overlapping stents
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2250/0007 for adjusting length
• CPC Class Codes: A61F 2250/0063 Nested prosthetic parts

Abstract

A stent graft has two coaxially arranged, radially expandable stents, and a flexible, stretchable material layer arranged between the stents. Both stents are directly connected with one another in their end regions and the material layer is formed as a fabric band wound around an inner stent.

Claims

1. A stent graft, comprising two coaxially arranged, radially expandable stents, both said stents being directly connected with one another in their end regions;

and a flexible, stretchable material layer arranged between said stents, said material layer being formed as a fabric band which is wound around an inner one of said stents.

2. A stent graft as defined in claim 1, wherein said material layer overlaps only a part of said stents.

3. A stent graft as defined in claim 1, wherein both said stents are punctually connected with one another in their end regions.

4. A stent graft as defined in claim 1 wherein said material layer is formed as a hose-shaped element composed of a foil.

5. A stent graft as defined in claim 1, wherein said material layer is formed as a hose-shaped element composed of a fabric.

6. A stent graft as defined in claim 1, wherein said material layer is formed as a foil band which is wound around an inner one of said stents.

7. A stent graft as defined in claim 1, wherein said material layer is composed of polythetrafluorethylene.

8. A stent graft is defined in claim 1, wherein said material layer is formed of polyethylenteraphthalate.

9. A stent graft as defined in claim 1, wherein said material layer is composed of a biological material.

10. A stent graft as defined in claim 1, wherein said biological material is an autologous material.

11. A stent graft as defined in claim 9 wherein said biological material is a homologous material.